What is a UROTAC?
A CT urography (UROTAC) is a scanning technique that uses contrast material and images to show if there is blood in the urine and also to show kidney or bladder stones or cancer in the urinary tract. A CT urography uses a CT scanner to guide the process, producing cross-sectional images of the urinary tract and bladder that, once assembled, create a multidimensional image.
What does a CT UROTAC consist of?
During a CT urography, you lie on a narrow examination table that slides into the CT machine. Here the x-ray detectors inside the CT machine rotate around you to create images of your internal anatomy. These images are compiled and developed by a special computer program. If contrast material is used, to highlight any blockages, for example, it will be injected through an intravenous line. This is an outpatient procedure.
A UROTAC is completely painless.
Why is a CT UROTAC performed?
A CT urography is commonly used to detect problems in the kidneys, bladder, urinary tract and ureter. The main problems detected with a CT urography are:
- Blood in the urine (hematuria).
- Cancers
- Kidney or bladder stones
Preparation for a CT UROTAC:
On the day of the CT urography, it is recommended that you wear loose-fitting clothing, but you will be given a gown to wear during the scan. You should remove glasses, jewelry or any metal-containing objects before the scan, as they may interfere with the CT scanner. You will be given special guidelines about eating and drinking before the scan, however, sometimes you may be asked to drink water beforehand to dilate your bladder. If contrast material is being used, you may be asked to avoid eating for a few hours before the scan.
What to expect during a CT UROT:
A CT urogram is painless and usually fairly quick. You may feel discomfort from having to lie still for a period of time and you may be asked to hold your breath at certain times during the scan. However, pillows and straps may be used to make it easier to stay still. If contrast material is used, you may experience a warm sensation when it is injected. Once the scan is completed, the radiologist will ensure that the images are acceptable and, if contrast material has been used, the intravenous line will be removed once the scan is complete.
What do abnormal results mean?
If the results indicate any of the above abnormalities, more images may be taken and additional tests may be performed. The radiologist will interpret the results and share a report with your physician.
Developments with CT scans:
Newer CT scanners can perform scans of large sections of the body very quickly in a few seconds, which makes staying still much easier.